CN212905380U - Instrument for on-line detecting connection on-off of electric detonator and cable - Google Patents
Instrument for on-line detecting connection on-off of electric detonator and cable Download PDFInfo
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- CN212905380U CN212905380U CN202022295047.9U CN202022295047U CN212905380U CN 212905380 U CN212905380 U CN 212905380U CN 202022295047 U CN202022295047 U CN 202022295047U CN 212905380 U CN212905380 U CN 212905380U
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Abstract
The utility model discloses an instrument of break-make is connected with cable to on-line measuring electric detonator, including power module, singlechip and detection module, power module adopts steady voltage step-down filter circuit, steady voltage step-down filter circuit is supplied power by direct current voltage source, the output inserts the singlechip, detection module includes signal input amplifier circuit, electric detonator connecting circuit and signal output processing circuit, square wave voltage signal delivery outlet on the singlechip inserts signal input amplifier circuit, electric detonator connecting circuit's input and output are through 1:1 inductance respectively with signal input amplifier circuit and signal output processing circuit coupling, signal output processing circuit inserts the dynamic signal acquisition interface on the singlechip. The instrument can not only detect the connection on-off of the electric detonator and the cable, but also physically isolate the direct current voltage source from the electric detonator by the inductor when the circuit is short-circuited, thereby ensuring the detection safety.
Description
Technical Field
The utility model relates to an on-line measuring electric detonator and cable are connected instrument of break-make.
Background
At present, a method for detecting connection and disconnection of an electric detonator and a cable adopts a lithium battery, measures bridge resistance of the electric detonator by using ohm's law, and indicates that the measured electric detonator and the cable are connected perfectly when the measured resistance is in a specified range. However, if the circuit is short-circuited, the direct-current voltage of the lithium battery is directly applied to two ends of the electric detonator, and once the energy is accumulated to a certain degree, the electric detonator is detonated, so that casualties or articles are possibly damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an instrument of break-make is connected with cable to on-line measuring electric detonator, this instrument can not only detect out the break-make of being connected of electric detonator and cable, and the inductance can be isolated DC voltage source and electric detonator physics apart when the circuit short circuit moreover, has guaranteed to detect safety.
The utility model adopts the technical proposal that:
an instrument for on-line detection of connection and disconnection of an electric detonator and a cable comprises a power supply module, a single chip microcomputer and a detection module, wherein the power supply module adopts a voltage stabilizing and reducing filter circuit, the voltage stabilizing and reducing filter circuit is powered by a direct current voltage source, the output end of the voltage stabilizing and reducing filter circuit is connected with the single chip microcomputer, the detection module comprises a signal input amplifying circuit, an electric detonator connecting circuit and a signal output processing circuit, a square wave voltage signal output port on the single chip microcomputer is connected with the signal input amplifying circuit, the input end and the output end of the electric detonator connecting circuit are respectively coupled with the signal input amplifying circuit and the signal output processing circuit through 1:1 inductors, and the signal output processing circuit is connected with a dynamic signal acquisition interface on the.
Further, the voltage of the direct-current voltage source is 7.8V, the output voltage of the voltage stabilizing and reducing filter circuit is 3.3V, and the amplitude of a square wave voltage signal output by the single chip microcomputer is 3.3V.
Further, the direct current voltage source is a lithium battery.
The utility model has the advantages that:
the instrument can not only detect the connection on-off of the electric detonator and the cable, but also physically isolate the direct current voltage source from the electric detonator by the inductor when the circuit is short-circuited, thereby ensuring the detection safety.
Drawings
Fig. 1 is a schematic diagram of a detection module according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a power module according to an embodiment of the present invention.
In the figure: 1-signal input amplifying circuit; 2-electric initiator connecting circuit; 3-signal output processing circuit.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
An instrument for on-line detection of connection and disconnection of an electric detonator and a cable comprises a power supply module, a single chip microcomputer and a detection module, wherein the power supply module adopts a voltage-stabilizing and voltage-reducing filter circuit as shown in figure 2, the voltage-stabilizing and voltage-reducing filter circuit is powered by a direct-current voltage source, an output end of the voltage-stabilizing and voltage-reducing filter circuit is connected with the single chip microcomputer, as shown in figure 1, the detection module comprises a signal input amplification circuit 1, an electric detonator connecting circuit 2 and a signal output processing circuit 3, a square-wave voltage signal output port on the single chip microcomputer is connected with the signal input amplification circuit 1, an input end and an output end of the electric detonator connecting circuit 2 are respectively coupled with the signal input amplification circuit 1 and the signal output processing circuit 3 through 1:1 inductance, and the signal.
In this embodiment, the voltage of the dc voltage source is 7.8V, the output voltage of the voltage stabilizing and reducing filter circuit is 3.3V, and the amplitude of the square wave voltage signal output by the single chip microcomputer is 3.3V.
In this embodiment, the dc voltage source is a lithium battery.
The instrument can detect the connection and disconnection between the electric detonator and the cable, and the inductor can physically isolate a direct current voltage source from the electric detonator when a circuit is short-circuited, so that the detection safety is ensured, namely 7.8V lithium battery is used for supplying power, 7.8V is converted into 3.3V through a voltage stabilizing and reducing filter circuit, then a square wave voltage signal with the amplitude of 3.3V is output through the singlechip, then the square wave voltage signal is input into an amplifying circuit 1 to be amplified through the signal, the energy is transmitted to an electric detonator connecting circuit 2 through 1:1 inductive coupling to act on the electric detonator, the energy is transmitted to a signal output processing circuit 3 through 1:1 inductive coupling, the signal is transmitted to the singlechip after being processed, and when the singlechip detects that a dynamic signal is detected, the electric detonator is connected on the line, and if the electric detonator is not disconnected on the line.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (3)
1. The utility model provides an instrument of on-line measuring electric detonator and cable connection break-make which characterized in that: the voltage-stabilizing and voltage-reducing power supply device comprises a power supply module, a single chip microcomputer and a detection module, wherein the power supply module adopts a voltage-stabilizing and voltage-reducing filter circuit, the voltage-stabilizing and voltage-reducing filter circuit is powered by a direct-current voltage source, the output end of the voltage-stabilizing and voltage-reducing filter circuit is connected with the single chip microcomputer, the detection module comprises a signal input amplification circuit, an electric detonator connecting circuit and a signal output processing circuit, a square wave voltage signal output port on the single chip microcomputer is connected with the signal input amplification circuit, the input end and the output end of the electric detonator connecting circuit are respectively coupled with the signal input amplification circuit and the signal output processing circuit through 1: 1.
2. The apparatus for on-line detecting the connection and disconnection between an electric detonator and a cable according to claim 1, wherein: the voltage of the direct-current voltage source is 7.8V, the output voltage of the voltage stabilizing and reducing filter circuit is 3.3V, and the amplitude of a square wave voltage signal output by the single chip microcomputer is 3.3V.
3. The apparatus for on-line detecting the connection and disconnection between an electric detonator and a cable according to claim 1, wherein: the direct current voltage source is a lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022295047.9U CN212905380U (en) | 2020-10-15 | 2020-10-15 | Instrument for on-line detecting connection on-off of electric detonator and cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022295047.9U CN212905380U (en) | 2020-10-15 | 2020-10-15 | Instrument for on-line detecting connection on-off of electric detonator and cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212905380U true CN212905380U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022295047.9U Active CN212905380U (en) | 2020-10-15 | 2020-10-15 | Instrument for on-line detecting connection on-off of electric detonator and cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212905380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838635A (en) * | 2022-05-23 | 2022-08-02 | 华东光电集成器件研究所 | Digital detonator detonation control interface overcurrent short-circuit protection circuit and control method |
-
2020
- 2020-10-15 CN CN202022295047.9U patent/CN212905380U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114838635A (en) * | 2022-05-23 | 2022-08-02 | 华东光电集成器件研究所 | Digital detonator detonation control interface overcurrent short-circuit protection circuit and control method |
| CN114838635B (en) * | 2022-05-23 | 2023-06-27 | 华东光电集成器件研究所 | Overcurrent short-circuit protection circuit and control method for detonation control interface of digital detonator |
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